Search HPD violations on HPDONLINE by the building’s address. Each violation carries a class: A is non-hazardous with 90 days to correct, B is hazardous with 30 days, and C is immediately hazardous with 24 hours, or no time at all for heat and hot water. The record moves much more slowly than the deadline: class C violations from 2024 inspections took a median 92 days to show as closed, and 23% of them are still open.
How to look up HPD violations for a NYC building
- Search the address on HPDONLINE, HPD’s public lookup for residential buildings.
- Review the open violations first, starting with class C.
- For each violation, note the inspection date, the date the notice of violation was issued, and the original correct-by and certify-by dates.
- For a longer history or several buildings, filter HPD’s Housing Maintenance Code Violations data set by house number and street name. It carries the same class, date and status fields, and it is where our counts below come from.
HPD class A, B and C correction deadlines
| Class | HPD name | Time to correct after notice |
|---|---|---|
| A | Non-hazardous | 90 days |
| B | Hazardous | 30 days |
| C, heat and hot water | Immediately hazardous | No time |
| C, most other conditions | Immediately hazardous | 24 hours |
| C, lead-based paint, window guards, mold, pests | Immediately hazardous | 21 days |
| C, self-closing doors | Immediately hazardous | 14 days |
Sources: HPD penalties and fees page for classes A, B and the general class C rules, and HPD’s calendar 2025 certification of correction report for the class C exceptions.
After a repair, the owner certifies the correction to HPD, which may reinspect. Lead-based paint violations and class B or C mold violations need a completed reinspection before they count as complied, per the same report. Civil penalties for violations issued on or after December 8, 2023 start at $10 to $50 for class A and $25 to $100 plus $10 a day for class B, and a complaint inspection that results in a class B or C violation adds a $200 inspection fee.
What 2024 HPD violation records show by class
We counted every violation from HPD inspections dated in 2024, with status as of October 24, 2026. The class C total, 297,765, is close to the 298,043 class C violations HPD reports issuing in calendar 2024, a useful check on the data.
| Class | Violations | Still open | Median days to close | Closed within 30 days |
|---|---|---|---|---|
| A | 235,543 | 28% | 125 | 9% |
| B | 396,541 | 29% | 120 | 1% |
| C | 297,765 | 23% | 92 | 13% |
Median days to close and the 30-day share cover closed violations only, counted from the inspection date to the date the status changed to closed. The data shows that a violation closed, but it leaves out how, whether by certification, reinspection or dismissal.
Which boroughs and conditions have the most open HPD violations
Queens has the highest open share of 2024 violations at 36% (51,711 of 142,313), followed by Brooklyn at 32% and Staten Island at 31%. Manhattan is at 25%. The Bronx had the most violations of any borough, 359,197, and the lowest open share, 23%.
Among class C conditions, pests stay open most often: 33% of roach violations (39,836 issued) and 32% of mouse violations (30,688) are still open, as are 31% of lead-based paint hazard violations (12,776). Hot water violations clear more often, with 15% of 12,462 still open.
What an open HPD violation means for a renter, buyer or owner
- Renters: conditions are reported through 311, and HPD’s report a maintenance issue page lists the same correction periods. An open violation in your apartment stays on the building’s record until HPD closes it.
- Buyers: HPD covers housing maintenance. Department of Buildings permits and violations are a separate search, covered in our NYC DOB permit search guide, and city charges that go unpaid can end up on the lien sale list.
- Owners: HPD’s guide to clearing HPD violations explains certification of correction and dismissal requests.
HPD and DOB keep separate violation records. For the Department of Buildings side, see our NYC DOB and ECB violations lookup.
What to compare when you check two NYC buildings
- Open violations by class, especially class C.
- How recent the inspections are: a stack of old open violations and a stream of new ones tell different stories.
- Whether the same condition, such as roaches or hot water, repeats across years.
- Vacate orders, which our guide to HPD vacate order records covers.
- DOB violations and open permits for the same address.
When an owner leaves a Class C violation uncorrected, HPD can make the repair and bill the property. Our HPD emergency repair charges guide shows how to find those charges and how they connect to the lien sale.
If a building has many open B and C violations and emergency repair charges, check whether it is in HPD’s Alternative Enforcement Program with our NYC AEP buildings list guide. When an owner hires out mold work larger than 10 square feet, state law calls for a licensed assessor and a separate licensed remediation company; our New York mold license lookup shows how to check both.
Counts are our calculations from HPD’s Housing Maintenance Code Violations open data, pulled October 24, 2026. For Chicago, Austin and Seattle, see our code violation lookup by address, and more analyses are on the permit data page.